I've got a musician buddy.don't know if he schizo or what his problem is.but I've never heard or seen this kind of behavior before.when he smokes he gets practically mute, has a smile on his face and doesn't respond.we will talk to him ask if he's alright and its like he doesn't even know we are there.like he's in a different world.almost tripping or something. anyway my point is weed does different things to different people.anyone with mental problems should NOT smoke sativas